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CRITICAL CURRENT MEASUREMENTS OF NIOBIUM-TIN SUPERCONDUCTORS: NBS CONTRIBUTION TO THE VAMAS INTERLABORATORY COMPARISON.

Author(s) : GOODRICH L. F., BRAY S. L.

Type of article: Article

Summary

CRITICAL CURRENT MEASUREMENTS ON SEVERAL NIOBIUM-TIN SUPERCONDUCTORS WERE MADE IN CONJUNCTION WITH 24 LABORATORIES FROM THE EEC, JAPAN AND THE USA AS PART OF THE VERSAILLES AGREEMENT ON ADVANCED MATERIALS AND STANDARDS (VAMAS). THE RESULTS, INCLUDING THE EFFECT OF SAMPLE MOUNTING TECHNIQUES ON THE MEASURED CRITICAL CURRENT, ARE GIVEN. A SYSTEMATIC STUDY OF THE EFFECT OF MEASUREMENT MANDREL GEOMETRY REVEALED THAT A SEEMINGLY SMALL CHANGE IN THAT GEOMETRY CAN RESULT IN A 40% CHANGE IN THE MEASURED CRITICAL CURRENT AT A MAGNETIC FIELD OF 12 T. TECHNIQUES FOR REDUCING VARIATION IN THE MEASURED CRITICAL CURRENT ARE SUGGESTED.

Details

  • Original title: CRITICAL CURRENT MEASUREMENTS OF NIOBIUM-TIN SUPERCONDUCTORS: NBS CONTRIBUTION TO THE VAMAS INTERLABORATORY COMPARISON.
  • Record ID : 1990-1795
  • Languages: English
  • Source: Cryogenics - vol. 29 - n. 7
  • Publication date: 1989

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